diff --git a/ChangeLog b/ChangeLog
index 596e22d..1cf42b1 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+0.7.2+: 2017 July 4
+    No longer automatically build with ImageMagick or GraphicsMagick if
+	    present; now need to explicitly specify --with-imagemagick or
+		--with-graphicsmagick to configure
+
 0.7.2: 2016 December 31
 	Various code-quality and build improvements
 	Support “jump pgc n” and other interaction code-generation improvements
diff --git a/Makefile.am b/Makefile.am
index de76fc5..7c11310 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -1,4 +1,6 @@
 SUBDIRS = doc src
+ACLOCAL_AMFLAGS = -I m4
+# as per recommendation at <https://www.gnu.org/software/libtool/manual/html_node/Invoking-libtoolize.html>
 
 noinst_DATA = dvdauthor.spec
 
#diff --git a/bootstrap b/bootstrap
#index 88b61ae..ecf35f0 100755
#--- a/bootstrap
#+++ b/bootstrap
#@@ -14,7 +14,7 @@
# #
# # Created by Lawrence D'Oliveiro <ldo@geek-central.gen.nz>.
# #-
#-mkdir autotools
#+mkdir autotools m4
# cp /usr/share/gettext/config.rpath autotools/
# autoreconf -i
# 
diff --git a/configure.ac b/configure.ac
index f4b270f..b843cf4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,6 +1,7 @@
-AC_INIT(DVDAuthor,0.7.2,dvdauthor-users@lists.sourceforge.net)
+AC_INIT(DVDAuthor,0.7.2+,dvdauthor-users@lists.sourceforge.net)
 
 AC_CONFIG_HEADERS(src/config.h)
+AC_CONFIG_MACRO_DIRS([m4])
 AC_CONFIG_AUX_DIR(autotools)
 
 AM_INIT_AUTOMAKE
@@ -8,6 +9,8 @@ LT_INIT
 
 AC_PROG_INSTALL
 
+PKG_PROG_PKG_CONFIG
+
 AC_SYS_LARGEFILE
 
 AC_HEADER_STDBOOL
@@ -45,35 +48,30 @@ if test "$enable_shared" = 'no'; then
     config_static='--static'
 fi
 
-usemagick=0
-
-AC_CHECK_PROGS(MAGICKCONFIG, [MagickCore-config])
-if test -n "$MAGICKCONFIG"; then
-    ac_save_CPPFLAGS="$CPPFLAGS"
-    ac_save_LIBS="$LIBS"
-    MAGICK_CPPFLAGS="`$MAGICKCONFIG --cppflags`"
-    MAGICK_LIBS="`$MAGICKCONFIG --ldflags` `$MAGICKCONFIG --libs`"
-    CPPFLAGS="$CPPFLAGS $MAGICK_CPPFLAGS"
-    LIBS="$MAGICK_LIBS $LIBS"
-    AC_CHECK_FUNC(ExportImagePixels, usemagick=1, AC_MSG_NOTICE([ImageMagick does not support the function
-         ExportImagePixels.  Please upgrade to ImageMagick 5.5.7 or newer]))
-    CPPFLAGS="$ac_save_CPPFLAGS"
-    LIBS="$ac_save_LIBS"
-    if test "$usemagick" = 1; then
-        AC_DEFINE(HAVE_MAGICK, 1, [Whether the ImageMagick libraries are available])
-    fi
+use_imagemagick=0
+use_graphicsmagick=0
+AC_ARG_WITH([imagemagick], AS_HELP_STRING([--with-imagemagick], [Use ImageMagick to augment image import formats]), [if test "$withval" != "no"; then use_imagemagick=1; fi])
+AC_ARG_WITH([graphicsmagick], AS_HELP_STRING([--with-graphicsmagick], [Use GraphicsMagick to augment image import formats]), [if test "$withval" != "no"; then use_graphicsmagick=1; fi])
+if test "$use_imagemagick" = 1 && test "$use_graphicsmagick" = 1; then
+    AC_MSG_ERROR([cannot specify both --with-imagemagick and --with-graphicsmagick], 1)
 fi
 
-if test "$usemagick" != 1; then
-    PKG_CHECK_MODULES([MAGICK], [GraphicsMagick], usemagick=1; [AC_DEFINE(HAVE_GMAGICK, 1, [whether the GraphicsMagick libraries are available])], [:])
+if test "$use_imagemagick" = 1; then
+    PKG_CHECK_MODULES([IMAGEMAGICK], [ImageMagick >= 5.5.7], [AC_DEFINE(HAVE_MAGICK, 1, [Whether the ImageMagick libraries are available])], [AC_MSG_ERROR([ImageMagick not available])])
+    MAGICK_CFLAGS="$IMAGEMAGICK_CFLAGS"
+    MAGICK_LIBS="$IMAGEMAGICK_LIBS"
 fi
-
-if test "$usemagick" != 1; then
-    MAGICK_CPPFLAGS="$LIBPNG_CFLAGS"
+if test "$use_graphicsmagick" = 1; then
+    PKG_CHECK_MODULES([GRAPHICSMAGICK], [GraphicsMagick], [AC_DEFINE(HAVE_GMAGICK, 1, [whether the GraphicsMagick libraries are available])], [AC_MSG_ERROR([GraphicsMagick not available])])
+    MAGICK_CFLAGS="$GRAPHICSMAGICK_CFLAGS"
+    MAGICK_LIBS="$GRAPHICSMAGICK_LIBS"
+fi
+if test "$use_imagemagick" != 1 && test "$use_graphicsmagick" != 1; then
+    MAGICK_CFLAGS="$LIBPNG_CFLAGS"
     MAGICK_LIBS="$LIBPNG_LIBS"
 fi
 
-AC_SUBST(MAGICK_CPPFLAGS)
+AC_SUBST(MAGICK_CFLAGS)
 AC_SUBST(MAGICK_LIBS)
 
 PKG_CHECK_MODULES([FONTCONFIG], [fontconfig], [AC_DEFINE(HAVE_FONTCONFIG, 1, [whether Fontconfig is available])], [:])
@@ -84,10 +82,8 @@ PKG_CHECK_MODULES([FRIBIDI], [fribidi], [AC_DEFINE(HAVE_FRIBIDI, 1, [whether Fri
 AC_SUBST(FRIBIDI_CFLAGS)
 AC_SUBST(FRIBIDI_LIBS)
 
-AC_CHECK_PROGS(FREETYPECONFIG, [freetype-config])
-if test -n "$FREETYPECONFIG"; then
-    FREETYPE_CPPFLAGS="`$FREETYPECONFIG --cflags`"
-    FREETYPE_LIBS="`$FREETYPECONFIG --libs $config_static`"
+PKG_CHECK_MODULES(FREETYPE, [freetype2],[
+    FREETYPE_CPPFLAGS="$FREETYPE_CFLAGS"
     AC_DEFINE(HAVE_FREETYPE, 1, [Whether FreeType is available])
 
     ac_save_CPPFLAGS="$CPPFLAGS"
@@ -96,10 +92,11 @@ if test -n "$FREETYPECONFIG"; then
     CPPFLAGS="$ac_save_CPPFLAGS"
     AC_SUBST(FREETYPE_CPPFLAGS)
     AC_SUBST(FREETYPE_LIBS)
-else
+    ],
     AC_MSG_ERROR([freetype not found])
-fi
+)
 
+PKG_CHECK_MODULES([XML2], [libxml-2.0 >= 2.6.0])
 
 AC_ARG_ENABLE([default-video-format],
 AS_HELP_STRING([--enable-default-video-format=format], [specify a default video format, either NTSC or PAL, to be used if no configuration or input setting is given]),
@@ -135,11 +132,7 @@ dnl AM_LANGINFO_CODESET
 
 AM_ICONV
 
-ifdef([AM_PATH_XML2],
-    [AM_PATH_XML2(2.6.0, , AC_MSG_ERROR([You must have libxml2 >= 2.6.0 installed]))],
-    [errprint([You must have libxml2 (>= 2.6.0) installed
-])m4_exit(1)AC_MSG_ERROR([You must have libxml2 (>= 2.6.0) installed])])
-
 AC_CHECK_DECLS(O_BINARY, , , [ #include <fcntl.h> ] )
 
-AC_OUTPUT(Makefile doc/Makefile src/Makefile)
+AC_CONFIG_FILES(Makefile doc/Makefile src/Makefile)
+AC_OUTPUT
diff --git a/src/Makefile.am b/src/Makefile.am
index c7f89a9..5504b8e 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -8,7 +8,7 @@ endif
 nodist_bin_SCRIPTS = dvddirdel
 
 AM_CPPFLAGS = -DSYSCONFDIR="\"$(sysconfdir)\"" \
-    @XML_CPPFLAGS@ @MAGICK_CPPFLAGS@ @FREETYPE_CPPFLAGS@ @FRIBIDI_CFLAGS@ @FONTCONFIG_CFLAGS@
+    @XML2_CFLAGS@ @MAGICK_CFLAGS@ @FREETYPE_CPPFLAGS@ @FRIBIDI_CFLAGS@ @FONTCONFIG_CFLAGS@
 AM_CFLAGS = -Wall
 
 dvdauthor_SOURCES = dvdauthor.c common.h dvdauthor.h da-internal.h \
@@ -16,17 +16,17 @@ dvdauthor_SOURCES = dvdauthor.c common.h dvdauthor.h da-internal.h \
     dvdifo.c dvdvob.c dvdpgc.c \
     dvdcli.c readxml.c readxml.h \
     conffile.c conffile.h compat.c compat.h rgb.h
-dvdauthor_LDADD = $(LIBICONV) $(XML_LIBS)
+dvdauthor_LDADD = $(LIBICONV) $(XML2_LIBS)
 
 dvdunauthor_SOURCES = dvdunauthor.c dvduncompile.c common.h dvduncompile.h compat.c compat.h
-dvdunauthor_LDADD = $(XML_LIBS) $(LIBICONV) -ldvdread
+dvdunauthor_LDADD = $(XML2_LIBS) $(LIBICONV) -ldvdread
 
 spumux_SOURCES = subgen.c subgen.h rgb.h \
     subgen-parse-xml.c readxml.c readxml.h \
     subgen-encode.c subgen-image.c subglobals.h \
     conffile.c conffile.h compat.c compat.h common.h \
     subrender.c subrender.h subreader.c subreader.h subfont.c subfont.h
-spumux_LDADD = $(XML_LIBS) $(MAGICK_LIBS) $(FREETYPE_LIBS) \
+spumux_LDADD = $(XML2_LIBS) $(MAGICK_LIBS) $(FREETYPE_LIBS) \
     $(FRIBIDI_LIBS) $(FONTCONFIG_LIBS) $(LIBICONV) -lm
 
 spuunmux_SOURCES = spuunmux.c rgb.h compat.c compat.h common.h conffile.h conffile.c
